In my PostgreSQL database, there is a field labeled as "timestamp with time zone compare"
Currently, I am trying to implement a data range comparison using JavaScript
var start = Date.UTC(2012,02,30);//1333065600000
var end = Date.UTC(2013,02,30); //1364601600000
This process is resulting in bigint numbers:
Wondering how I can incorporate start(1333065600000) and end (1364601600000) into an SQL query for PostgreSQL?
Consider attempting the following query:
retrieve all fields
from my_table
where date_field falls within the range of to_timestamp(1333065600000) and to_timestamp(1364601600000);
This function is similar to TO_TIMESTAMP, however, it automatically converts to the UTC time zone if the server is not operating in UTC.
SELECT * FROM table WHERE date BETWEEN
((TIMESTAMP WITH TIME ZONE 'epoch' + 1333065600 * INTERVAL '1 second') AT TIME ZONE 'UTC')
AND
((TIMESTAMP WITH TIME ZONE 'epoch' + 1364601600 * INTERVAL '1 second') AT TIME ZONE 'UTC');
It's important to remember that Javascript epoch counts milliseconds, unlike Unix epoch which only counts seconds. To handle this difference, you can either truncate the last three digits from input values (as shown in the example above), or divide by 1000 (see example below).
SELECT TIMESTAMP WITH TIME ZONE 'epoch' + 1333065600000/1000 * INTERVAL '1 second') AT TIME ZONE UTC;
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